To the question about why people in wheelchairs should not wait in line? Some children and adults not only have the handicapp of not being able to walk, but also other medical problems that the naked eye can not see. Some of these may be triggered due to the heat, the noise, conjestion in line, etc... Just like I believe anyone who travels with a child with other disabilities, but is able to walk they should not have to wait either. There are many children in my son's special needs class who look like your typical child, but something will trigger a reaction in them where they can not control themselves in the way they act and standing in line for a ride they would never make it.
Also Disney makes traveling with a special needs person a wonderful exprience and they go out of their way to make it easier for those with special needs and those who care for the person with special needs easier time where they all can enjoy there vacation a lot more. And one of these things they do is help those with special needs by not having to wait in long lines. Disney is the only place I can take my severally handicapped son who is in a wheelchair, because they help us by make things accessiable and reconizing those with special needs need and deserve special treatment. Life outside of a special needs person environment is not easy. At time it is down right physically hard on that person or the person caring for the special needs person and Disney is helping them out and providing them some extra help, so they can enjoy there vacation by offering entrances where they do not have to wait. Just like they offer parents the opportunity to baby swap, so they do not have to stand in line twice, so each can ride.
This is just my opinion. It makes our vacation a little more special to be able to get the extra services from Disney. It makes an outing for my son less stressful and more enjoyable.